Esco CelMate CLM-170/240B-8-CN Carbon Dioxide Incubator

Overview

The Esco CelMate CLM-170/240B-8-CN is an air-jacketed carbon dioxide incubator engineered for precision cell culture in regulated life science laboratories. It operates on a dual-control principle: maintaining stable CO₂ concentration (typically 5% ±0.1%) via infrared (IR) sensor feedback, and regulating temperature (37°C ±0.2°C) and relative humidity (≥95% RH at 37°C) through independent air-jacket thermal management and saturated water-jacket humidity recovery. Unlike water-jacketed systems, the air-jacket architecture provides faster temperature recovery after door openings—critical for minimizing thermal shock to sensitive mammalian cultures—and eliminates risks of water leakage or microbial growth within thermal insulation layers. The chamber employs forced convection with laminar airflow patterns optimized to avoid shear stress on adherent and suspension cells, while preserving ISO Class 5 (≤3,520 particles/m³ ≥0.5 µm) cleanroom-equivalent air quality inside the sample chamber.

Key Features

• Air-jacket thermal design ensures rapid temperature stabilization (<15 min recovery post 30-sec door opening) and superior spatial uniformity (±0.3°C across chamber volume)
• High-efficiency 0.2 µm gas-phase inline filter for CO₂ supply, achieving >99.999% particle retention efficiency—exceeding standard HEPA filtration performance for gaseous inputs
• Validated high-temperature decontamination cycle (180°C for 3 hours), independently verified by the UK Health Protection Agency (HPA) to inactivate bacterial endospores, mycotic propagules, and vegetative cells without compromising electronic integrity
• ISOCIDE® antimicrobial epoxy powder coating applied to exterior surfaces; integrated during manufacturing to ensure permanent efficacy—demonstrated >99.9% reduction in surface Staphylococcus aureus and Escherichia coli viability within 24 hours, unaffected by routine cleaning agents
• Polished 304 stainless steel inner chamber with seamless welded corners and coved base for complete sterilizability and minimal biofilm accumulation
• Intelligent CelAlert™ system with configurable alarms for temperature deviation, CO₂ level drift, humidity loss (optional sensor), door-open duration, and maintenance scheduling (e.g., filter replacement, calibration due date)

Sample Compatibility & Compliance

The CelMate CLM series supports a broad spectrum of primary and immortalized mammalian cell lines—including stem cells, hybridomas, neurons, and cancer models—as well as applications requiring strict environmental fidelity such as IVF embryo culture, tissue engineering scaffolds, and co-culture assays. Its design conforms to ISO 13485:2016 for medical device manufacturing environments and supports GLP/GMP-aligned workflows through audit-trail-capable event logging. All firmware and data handling comply with FDA 21 CFR Part 11 requirements when paired with Esco’s optional secure software package, enabling electronic signatures, user access controls, and immutable parameter history storage on internal flash memory.

Software & Data Management

Embedded microprocessor firmware records all operational parameters—including chamber temperature, CO₂ concentration, humidity (if equipped), door status, alarm events, and sterilization cycle logs—at user-defined intervals (1–60 minute resolution). Data is stored locally on industrial-grade flash memory with 10-year retention capability and exportable via USB port in CSV format. The intuitive graphical LCD interface provides real-time trend visualization and historical playback. Optional Ethernet or RS-485 connectivity enables integration into centralized lab monitoring platforms (e.g., LabVantage, Thermo Fisher SampleManager) for remote status alerts, predictive maintenance notifications, and automated compliance reporting.

Applications

• In vitro fertilization (IVF) and embryology labs requiring uninterrupted pH stability via precise CO₂ control
• Neuroscience research involving long-term neuronal differentiation and organoid maturation
• Oncology studies utilizing 3D spheroid or scaffold-based tumor models sensitive to microenvironmental fluctuations
• Regenerative medicine workflows where sterility assurance and low particulate exposure are mandated per ISO 14644-1 Class 5 standards
• Biopharmaceutical QC/QA testing of cell-based potency assays under GxP conditions

FAQ

What validation documentation is provided with the CelMate CLM series?
Factory-installed IQ/OQ protocols compliant with ASTM E2500 and EU Annex 15 are included. Users receive pre-validated sensor calibration certificates traceable to NIST standards and HPA-reviewed sterilization validation reports.
Is the high-temperature decontamination cycle compatible with standard lab plastics?
No—chamber contents must be removed prior to sterilization. Only stainless steel, borosilicate glass, and PTFE components rated for continuous 180°C exposure may remain inside.
Can humidity be monitored and logged without the optional sensor?
Humidity sensing and logging require the factory-installed capacitive RH probe; it is not retrofittable in the field and must be specified at time of order.
How does the ISOCIDE® coating interact with common disinfectants like 70% ethanol or sodium hypochlorite?
Independent testing confirms no degradation of antimicrobial efficacy after 500 cycles of exposure to 70% isopropanol, 70% ethanol, or 0.5% sodium hypochlorite—validating compatibility with standard BSL-2 decontamination protocols.
What is the mean time between failures (MTBF) for the IR CO₂ sensor under continuous operation?
Based on accelerated life testing and field data from >12,000 installed units, the IR sensor demonstrates an MTBF exceeding 50,000 hours with annual recalibration recommended to maintain ±0.05% CO₂ accuracy.